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Description: A synthetic narcotic, fentanyl has been detected in an increasing number of illicit drug overdose deaths in Metro Vancouver. Many of the people who died were recreational and/or occasional users and don’t appear to have known they were ingesting fentanyl, as it is easily hidden in other drugs.

Video: Animation of a particle collision in the CERN Large Hadron Collider

An event with four identified muons from a proton-proton collision in ATLAS. This event is consistent with coming from two Z particles decaying: both Z particles decay to two muons each. Such events are produced by Standard Model processes without Higgs particles. They are also a possible signature for Higgs particle production, but many events must be analysed together in order to tell if there is a Higgs signal. Video by CERN

The two teams hunting for the Higgs at CERN, called Atlas and CMS, now have twice the amount of data that allowed them to claim 'tantalising glimpses' of the Higgs at the end of last year and this could push their results beyond that threshold. (In this photo: This computer-generated image shows CERN's 27-kilometre-long circular test tunel under the Swiss Alps. Scientists worked here with a massive particle accelerator to crack the mystery of Higgs boson.)

An event with four identified muons from a proton-proton collision in ATLAS. This event is consistent with coming from two Z particles decaying: both Z particles decay to two muons each. Such events are produced by Standard Model processes without Higgs particles. They are also a possible signature for Higgs particle production, but many events must be analysed together in order to tell if there is a Higgs signal. Video by CERN